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I-refractory refractory eqinile engagugi
I-refractory refractory eqinile engagugi yenziwa nge-refractory aggregate, impushana ephikisayo.ama-binders nezinye izithasiselo.
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I-insulation enesisindo esincane/i-refractory castable
I-light-weight refractory insulation incastable ikhiqizwa ngekhwalithi ephezulu yesisindo sokukhanya, impushana, i-admixture kanye ne-binder.